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About
This app generates complete rock songs with a full band arrangement, including guitars, bass, keys, and drums, each with its own amp. It utilizes chaos mathematics for unique song structures and offers thirteen distinct musical styles. Users can play along with generated songs and export their creations.
✓AI song generation
✓Full band arrangement
✓Thirteen musical styles
✓Customizable rigs and amps
✓Play-along feature
✓MIDI and WAV export
✓Offline functionality
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What's New in 91 Rock
1.0.3
November 2, 2026
Added Track Presets section. Added support for native M series Macs and older Intel Macs.
1
Subscriptions & In-App Purchases
$2.99
AUv3 Unlock
Unlock Audio Unit (AUv3) Instrument and Midi effect.
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FAQ
What is 91 Rock?
91 Rock is an application that automatically writes and plays complete rock songs with a full band arrangement. It uses chaos mathematics to create unique song structures and offers various musical styles and amp configurations.
Does 91 Rock work offline?
Yes, 91 Rock works with no network at all. All the necessary instruments, amps, and drum kits are included within the app, allowing for offline song generation and playback.
What musical styles does 91 Rock offer?
91 Rock features thirteen distinct musical styles, including Grunge, Metal, Heavy Metal, Death Metal, Groove Metal, Rap Metal, Progressive, Rock Ballad, British Rock, Country Rock, Alternative, Punk, and Stoner/Sludge.
Can I play along with the songs generated by 91 Rock?
Yes, you can play over the generated songs. The app provides pads that play the notes of the song's key and a sixteen-step lane that runs in time with the song, allowing for interactive play.
What export options are available in 91 Rock?
You can export your creations as a MIDI file, a WAV mix, or individual stems (one WAV per part). This allows for further editing and integration into other music production software.
How does 91 Rock use chaos mathematics?
91 Rock employs chaos mathematics, with a Lorenz attractor for melodic lines and a logistic map for drum patterns, ensuring that no two bars are alike. A filtering model rewards consonant intervals, allowing the AI to learn and refine its compositions.
Is 91 Rock suitable for beginners?
The app is designed to be accessible, with features like the play-along pads that ensure you play the correct notes. The CHAOS / TASTE slider also allows users to control the balance between AI-driven composition and musical taste.
What devices is 91 Rock available on?
91 Rock is available on iPhone, iPad, and iPod. The UI scale can be adjusted for optimal viewing on larger screens like iPads.
